81156840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11087}}^1$

素因数の和:11162

約数の個数: 64

約数和(自身を含む): 247484160

約数和(自身を除く): 166327320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 3660, 7320, 11087, 22174, 33261, 44348, 55435, 66522, 88696, 110870, 133044, 166305, 221740, 266088, 332610, 443480, 665220, 676307, 1330440, 1352614, 2028921, 2705228, 3381535, 4057842, 5410456, 6763070, 8115684, 10144605, 13526140, 16231368, 20289210, 27052280, 40578420, 81156840]

約数ペア:

[(1, 81156840), (2, 40578420), (3, 27052280), (4, 20289210), (5, 16231368), (6, 13526140), (8, 10144605), (10, 8115684), (12, 6763070), (15, 5410456), (20, 4057842), (24, 3381535), (30, 2705228), (40, 2028921), (60, 1352614), (61, 1330440), (120, 676307), (122, 665220), (183, 443480), (244, 332610), (305, 266088), (366, 221740), (488, 166305), (610, 133044), (732, 110870), (915, 88696), (1220, 66522), (1464, 55435), (1830, 44348), (2440, 33261), (3660, 22174), (7320, 11087)]